The invention relates to a beneficiation method for copper sulfide ore containing easily-sliming gangue minerals. According to the method, lime is adopted as pH regulator and pyrite depressant of flotation pulp of the copper sulfide ore containing the easily-sliming gangue minerals; sodium sulfide serves as activator of a small number of copper oxide minerals in the ore; sodium hexametaphosphate, sodium silicate or ethylenediamine serves as gangue slurry dispersant; a combination of butyl xanthate and other collectors serves as a collector of copper sulfide minerals; terpernic oil serves as foaming agent. The ore is subjected to primary grinding, primary roughing, primary scavenging and three-time concentration; the ore pulp is subjected to strong stirring and pulp mixing before starting to be subjected to primary roughing, primary scavenging and primary concentration, so that copper contained in the ore is efficiently recovered. According to the method, through reasonable combination and addition of chemicals, the ore grinding and pulp mixing process is strengthened, the adverse influence of gangue slurry on copper sulfide mineral floatation is eliminated, the surface characteristics of copper sulfide minerals are improved, the preferential adsorption of the collector on the surfaces of the copper sulfide minerals is enhanced, and accordingly, compared with a conventional method, the copper grade and the copper recovery rate of copper concentrate are substantially increased.

Beneficiation method for copper sulfide ore containing easily-sliming gangue minerals

The invention discloses a mineral beneficiation method of complex and refractory high-grade copper sulfide ore. The method comprises the steps that high-grade copper sulfide raw ore is crushed; the ore is ground; pulp is adjusted; high-grade copper sulfide ore rough scavenging is performed; and concentrate roughing, grinding and selection are performed in sequence. According to the mineral beneficiation method of the complex and refractory high-grade copper sulfide ore, through an efficient inhibitor XKY-03, inhibition of pyrite minerals is enhanced selectively, and inevitable activation of ions to the pyrite minerals in the ore pulp is eliminated selectively; through an efficient collector XKP-03, collecting of copper sulfide minerals is selectively enhanced; and meanwhile, before flotation, by adopting quick lime and NaOH, the pH of the ore pulp is adjusted to be strongly alkaline, then flotation is performed, part of the pyrite minerals is inhibited, influences of the pyrite minerals on flotation of the copper sulfide minerals are reduced, and accordingly, the copper sulfide minerals, the pyrite minerals and gangue minerals are efficiently separated. The mineral beneficiation method has the characteristics of being good in separation effect, stable in mineral beneficiation index, small in agent consumption amount, easy and convenient to operate and easy to operate and manageon site, is a novel method suitable for mineral beneficiation of the complex and refractory high-grade copper sulfide ore, and is suitable for application and popularization.

Mineral beneficiation method of complex and refractory high-grade copper sulfide ore

The invention discloses an inhibitor and an ore dressing method of high-sulfur refractory copper and sulfur ore. The inhibitor is composed of lime and sodium hexametaphosphate at a mass ratio of 2.0-4.0:0.2-0.6 through mixing. The ore dressing method comprises following steps: raw ore grinding, copper sulfur bulk flotation coarse roughing, copper sulfur bulk flotation scavenging, copper sulfur bulk rough concentrate secondary grinding, copper sulfur bulk rough concentrate refining and refining scavenging, copper sulfur bulk concentrate separating coarse roughing, and copper sulfur separating refining. According to the ore dressing method, bulk rough concentrate secondary grinding is carried out, and then bulk flotation refining is carried out, so that further removing of a part of gangue is realized; a high efficiency inhibitor is adopted for reinforcement of inhibition on iron sulfide ore, and elimination activation of unavoidable ions in ore pulp on ferric sulfide ore, and at last, high efficiency separation of copper sulphide ore, ferric sulfide ore, and gangue is realized. The ore dressing method is simple and convenient; agent consumption amount is reduced; waste water high alkalinity problem is solved; copper sulfur separation effect is excellent; at laste, high grade copper concentrate and sulfur concentrate are obtained; and the ore dressing method is suitable for popularization and applications.

Inhibitor and ore dressing method of high-sulfur refractory copper and sulfur ore

The invention belongs to the technical field of mineral processing engineering and particularly relates to a copper-cobalt sulfide ore double-region floatation method for industrial production. The method is characterized in that a separation process adopts a floatation process, the floatation process adopts double-region floatation, the first region is mainly used for concentrate index control, and the second region is used for recovery rate control. The method has the advantages that copper and cobalt in copper-cobalt sulfide ore can be efficiently recovered at the same time in the scope of industrial production; the double-region step-by-step floatation method is used, contradiction between recovery rate and concentrate grade in the field is relieved effectively, and quality control efficiency is increased; the optimization efficiency of the recovery rate and concentrate indexes is increased greatly, and the relatively separated control of the grade and the recovery rate is achieved.

Copper-cobalt sulfide ore double-region floatation method for industrial production

The invention discloses a beneficiation method of a copper-cobalt ore containing easy-floating gangue. The beneficiation method comprises the steps that a foaming agent BKF is added into raw ore pulpof the copper-cobalt ore containing the easy-floating gangue for pre-floatation of the easy-floating gangue to obtain easy-floating gangue foams and ore pulp after the pre-floatation of the easy-floating gangue; a gangue mineral inhibitor and a copper-cobalt mineral collector is added into the easy-floating gangue foams, and pre-floating gangue mineral recleaning and scavenging are performed to obtain a first copper-cobalt rough concentrate; a pH regulator, a copper-cobalt mineral activator, a copper-cobalt collector and the foaming agent BKF are added into the ore pulp after the pre-floatation of the easy-floating gangue, and copper-cobalt roughing and copper-cobalt scavenging are performed to obtain a second copper-cobalt rough concentrate; the first copper-cobalt rough concentrate is mixed with the second copper-cobalt rough concentrate for regrinding, and rough concentrate ore pulp after regrinding is obtained; and the rough concentrate ore pulp after regrinding is selected, and then a copper-cobalt concentrate is obtained. The beneficiation method can effectively inhibit easy-floating gangue minerals, ensures the copper-cobalt concentrate quality, improves the copper-cobalt recovery rate, and increases the economic benefits of an enterprise.

Beneficiation method of copper-cobalt ore containing easy-floating gangue

The invention discloses a flotation method for carbonaceous copper-cobalt ore. The flotation method includes firstly, performing ore grinding on copper-cobalt core raw materials, adding lime during ore grinding, and grinding the ore until the ore is -0.074mm in size and accounts for 70%-80%; adding water and preparing ore pulp until concentration of the ore pulp reaches 25%-30%; adding a regulating agent, a collecting agent and a foaming agent again for ore pulp preparation; performing flotation, including two-time rougher flotation, two-time scavenging and three-time concentration, on the ore pulp subjected to ore pulp preparation; adding one or more of the regulating agent, the collecting agent and the foaming agent during each operation according to needs to finally obtain copper-cobalt concentrates and tailings. The flotation method is simple in procedure, convenient to control, high in separation efficiency and good in index, and the obtained copper-cobalt concentrates have good quality.

Flotation method for carbonaceous copper-cobalt ore

The invention provides a copper and sulphur separation method for copper-sulphur ore and relates to a method for separating copper from sulphur in copper-sulphur ore flotation rough concentrate. The copper and sulphur separation method for the copper-sulphur ore is characterized in that the steps of a treating process comprise that (1) ore grinding is conducted on copper-sulphur rough concentrate obtained through flotation; (2) after the ore grinding, a sulfur inhibitor selected from sodium sulfite, sodium metabisulfite, sodium bisulfate and sodium thiosulfate is added to the copper-sulphur rough concentrate, and a sulfur inhibition reaction is conducted; (3) a copper selective collector is added, and flotation is conducted; (4) a humate inhibitor is added to a flotation froth product; after an reaction with mixing is conducted, concentration is conducted; and (5) a humate inhibitor is added to a concentration froth product; after an reaction with mechanical mixing, concentration is conducted again, and copper concentrate separated from the sulphur is obtained. The copper and sulphur separation method for the copper-sulphur ore is simple in technology; lime and other highly alkaline inhibitors are not required to be added; required reagents are extensive in source and easy to prepare and add; the prepared reagents are good in flowability, easy to control, and not liable to block pipelines. The copper and sulphur separation method for the copper-sulphur ore is a novel copper and sulphur separation method.

Copper and sulphur separation method for copper-sulphur ore

The invention discloses an ore dressing method of copper-cobalt ores. The ore dressing method comprises the following steps: first, carrying out ore grinding treatment on copper-cobalt raw ores, adding a certain quantity of regulator in an ore grinding process, and regulating the pH value of ore slurry within a 9-10 range; sequentially adding a collector and a foaming agent into the ore slurry which is treated by ore grinding, carrying out copper-cobalt bulk flotation rough concentration, and after scavenging twice, obtaining tailings; adding an inhibitor into bulk flotation foams, and after carrying out fine concentration for three times, obtaining copper-cobalt bulk concentrates; using the copper-cobalt bulk concentrates as fed ores, carrying out regrinding treatment, adding a certain quantity of regulator in a regrinding treatment process, and regulating the pH value of the ore slurry within a 12-13 range; sequentially adding an inhibitor and a collector into the ore slurry which is treated by regrinding, carrying out copper-cobalt separating flotation, and obtaining cobalt concentrates after one rough concentration and one scavenging; and after carrying out fine concentration twice on the foams which are subjected to copper-cobalt separating flotation, obtaining copper concentrates. The method can effectively separate the copper-cobalt ores and obtain high-quality copper and cobalt concentrates.

Ore dressing method of copper-cobalt ores

The invention discloses a beneficiation method for high-calcium type fluorite Firstly, a regulator is added in high-calcium fluorite ore pulp, and the pH value of the ore pulp is controlled to be within the range from 7 to 8; an activating agent, an inhibitor and a collecting agent are sequentially added in the ore pulp, and first-time tailings are generated after floatation roughing and first-time scavenging are conducted; concentration is then conducted on foam generated after floatation roughing, a regulator is added, and the pH value of the ore pulp is controlled to be within the range from 65 to 7; an inhibitor and a collecting agent are sequentially added in the regulated ore pulp, concentration and second-time scavenging are conducted, and second-time tailings are generated; and then an inhibitor is added, fifth-time concentration is conducted, and high-grade fluorite concentrate is obtained By means of the method mentioned above, decalcification can be effectively conducted, meanwhile, the production flow can be simplified, the problems that middlings are large in circulation quantity, the separation efficiency is low and the floatation process is instable are solved, and the production efficiency is improved

Beneficiation method for high-calcium type fluorite

The invention discloses a beneficiation method of high-sulfur lead zinc ores under high-temperature environment. After raw ore pulp with a pH value above 12 is prepared, the lead roughing and the leadscavenging are performed to obtain lead roughing concentrates and lead scavenging tailing pulp; zinc sulfur inhibitors are added in the lead roughing concentrates for lead refining to obtain lead concentrates; the zinc quick flotation, the zinc roughing and the zinc scavenging are performed on the lead scavenging tailing pulp to obtain zinc quick flotation roughing concentrates and zinc roughingcrude concentrates; the zinc roughing crude concentrates are grinded again; then, the zinc sulfur separation roughing and the zinc sulfur separation scavenging are performed; and after the zinc quickflotation roughing concentrates and the zinc sulfur separation flotation roughing concentrates are merged, high-sulfur inhibitors are added for refining zinc sulfur separation zinc to obtain zinc concentrates. The pH value of the pulp is always kept above 13 in each flotation procedure. The beneficiation method can realize efficient recovery of the high-sulfur lead zinc ores under high-temperatureenvironment, and effectively guarantees the beneficiation process technical index of lead and zinc minerals.

Li Chengbi

Papers

Flotation method for carbonaceous copper-cobalt ore

Copper and sulphur separation method for copper-sulphur ore

Ore dressing method of copper-cobalt ores

Beneficiation method for high-calcium type fluorite

Beneficiation method of high-sulfur lead zinc ores under high-temperature environment